ROM Hack custom videos on gba player?

[chaosrunner]

is it possible to inject mp4 videos into a gba player cia example pokemon volume 1?

 

[Asia81]

IDK, but even if possible, quality would be very crappy

 

[chaosrunner]

true but the audio would not be choppy

 

[Gericom]

Well, these gba video roms use some strange video codec again. I've been looking in it for a bit, but it would take a lot of work again to reverse it. And the quality is crap.

Soon I'll release my moflex encoder, which will make it possible convert videos to moflex and inject them into cias that play moflex files.

 

[izy]

Well, these gba video roms use some strange video codec again. I've been looking in it for a bit, but it would take a lot of work again to reverse it. And the quality is crap.

Soon I'll release my moflex encoder, which will make it possible convert videos to moflex and inject them into cias that play moflex files.

GBA video uses MJPEG/Mpeg (called Meteo) at 240x160 so its just smaller version of what the 3DS is playing in its camera/video cia converter

that and its up to 15 fps tops is why its space is so small also

 

[FAST6191]

If you want video on the GBA then there is the meteo video encoder. It is the only real homebrew/hacker option. Technically it is paid software so I can not link it, should not be hard to find though.

If you only want audio there are better options, if you want sequenced/tracker music there are a few libs and example programs to hand mod and possibly XM (been a while but some searches should net some). For general audio playback then for most it is a fight between
http://pineight.com/gba/gsm/
and
http://www.gameboy-advance.net/emulated/musicplayer_advance_gba_mp3.htm
The header for the latter program is not good/there so you will probably need to make one with http://www.gameboy-advance.net/rom_tools/flash_advance_toolkit.htm and then possibly fix it with GBATA http://www.no-intro.org/tools.htm .

In either case if you have DS homebrew available to you then moonshell, lmp-ng or one of a dozen other pieces of DS homebrew blow anything that is not actual hardware (think play yan) on the GBA out of the water, and if you get a DStwo (or possibly ISMM) then you are laughing. Not sure what exists for 3ds audio playback but the main menu apparently does MP3 and AAC so there is that ( http://ds.about.com/od/nintendods101/ht/How-To-Play-Mp3-And-Aac-Files-On-Your-Nintendo-3ds.htm ).

 

[Gericom]

GBA video uses MJPEG/Mpeg (called Meteo) at 240x160 so its just smaller version of what the 3DS is playing in its camera/video cia converter

that and its up to 15 fps tops is why its space is so small also

The gba video paks by Majesco use their own proprietary codec, based on vector quantization.